SOOKOOK MAXI - Page 25

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Sookook Corporation
2F. Gas Flow Control
Gas Solenoid Valve
Install a safety shutoff valve (solenoid valve) to safely supply and shut off gas to the burner. The solenoid valve that can adjust the opening of
the valve can adjust the maximum flow rate of gas at the identical gas pressure. In case of HIGH / LOW burners, the maximum flow rate can
be adjusted without major adjustment of the butterfly valve.
 Fast-open Solenoid valve Flow Control
Control
Open the cap and adjust Flow by
rotating. Close the cap
Flow
Increase
Counter clock wise
Flow
Decrease
Clock wise
[Figure 2F-A. DMV-D Solenoid Valve] [Figure 2F-B. VMM Solenoid Valve]
 VML, VMM Slow-open(By-Pass) Flow Control
V start V max
Control
Open the cap and adjust flow by
rotating nut. Close the cap.
Open the cap and adjust flow by
rotating pin “S” in nut “Q” Close the
cap.
Duration
Rotating “R” 1/4 turn clockwise
increases the opening time about 2-
3 seconds. The maximum opening
time is 25 seconds.
Rotating “R” 1/4 turn clockwise
increases the opening time about 2-3
seconds. The maximum opening time
is 25 seconds
Flow
Increase
Counter clock wise Counter clock wise
Flow
Decrease
Clock wise Clock wise
V start
[Figure 2F-C. VML, VMM Slow-open Solenoid Valve(By-pass)]
 Slow-open Solenoid valve Flow Control
Control
Open the cap “T” and adjust flow by
rotating pin “Q”. Close the cap.
Duration
Rotating “R” 1/4 turn clockwise
increases the opening time about 2-
3 seconds. The maximum opening
time is 20 seconds
Flow
Increase
Counter clock wise
Flow
Decrease
Clock wise
[Figure 2F-D. EG Slow-open] [Figure 2F-E. MVDLE Slow-open]
Gas Flow Control with Slow-open Valve installed
V1
+ (Max.)
- (Min.)
V1
R
Q
S